Expression of p-ERK, ERK, DUSP5, p-JNK, JNK, and Bax proteins after cordycepin treatment. A: Western blots showing expression of p-ERK, ERK, DUSP5, p-JNK, and JNK at 0, 24, and 48 h in TK-10 cells after cordycepin treatment. B: Western blots showing expression of Bax, caspase-3, and cleaved caspase-3 at 0, 24, and 48 h in TK-10 cells after cordycepin treatment. Bar graphs represent densitometric analysis of at least three separate experiments (means ± SD). *P<0.05, **P<0.01, and ***P<0.001.